| NAME ▲ | ▼ | VESSEL ▲ | ▼ | RIG | YEAR ▲ | ▼ | AGE | MORE |
|
| Oscar Olney | Mary and Martha | Ship | 1851 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Mary and Martha | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Oscar Noldan | Valkyria | Schr | 1910 | 30 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Valkyria | Schr | 30 | 5' 9" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Light | | Charlestown | | | | |
|
| Oscar Myers | Roswell King | Schooner | 1873 | 43 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Roswell King | Schooner | 43 | 5' 8" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Williamsburgh | | | | |
|
| Oscar Myers | Roswell King | Schooner | 1877 | 49 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Roswell King | Schooner | 49 | 5' 9" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | New York | | | | |
|
| Oscar Morris | Barclay | Bark | 1855 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Barclay | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Oscar Mitcham | Milwood | Bark | 1846 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Milwood | Bark | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Greenhand | | | |
|
| Oscar Meyer | Roswell King | Schooner | 1875 | 46 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Roswell King | Schooner | 46 | 5' 11" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Light | | New London | | | | |
|
| Oscar M. Hay | Christopher Mitchell | Ship | 1853 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Christopher Mitchell | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Seaman | | | |
|
| Oscar M. Gay | Rapid | Ship | 1856 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Rapid | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | Boatsteerer | | | |
|
| Oscar M. Gay | Rapid | Ship | 1856 | | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Rapid | Ship | | | | | | Hair | Eye | Residence | Rank | Remarks | | | | | | line through this name | | |
|
| Oscar M. Day | America | Ship | 1856 | 26 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | America | Ship | 26 | | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Ithaca, Ny | | | | |
|
| Oscar Leonard | Triton | Bark | 1868 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Triton | Bark | 23 | 5' 8" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Hudson, Ny | | | | |
|
| Oscar Lamareaux | John R. Manta | Schr | 1907 | 20 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | John R. Manta | Schr | 20 | 5' 4" | | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Woonsocket | | | | |
|
| Oscar L. Noyes | Eliza Adams | Ship | 1872 | 23 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Eliza Adams | Ship | 23 | 5' 8" | Dark | | | Hair | Eye | Residence | Rank | Remarks | | Dark | | Hampton, Nh | | | | |
|
| Oscar L. Case | Fanny | Bark | 1864 | 24 | ⊕ |
| | | Vessel | Rig | Age | Height | Skin | | Fanny | Bark | 24 | 5' 10 1/2" | Light | | | Hair | Eye | Residence | Rank | Remarks | | Brown | | Sow: Old Town, Ny | | | | |
|